Travelling pipe cut-off

Details Travelling pipe cut-off Travelling pipe cut-off

1987-02-09

1988-07-12

Schmidt, Frederick R.

Turning

Severing or cut-off

Flying cutter type

82 46, 493289, B23B 3700

Patent

active

047562170

ABSTRACT:
A travelling pipe cut-off is described having a pair of knife-edged rollers mounted on a carriage that also supports a cut-off torch. At least one roller is engaged with the smooth surface of the pipe at all times during cut-off, each such roller advancing the carriage while the pipe is being advanced. The two rollers are spaced apart such that, as the bulge of a pipe seam approaches one of the rollers, that roller is moved out of engagement with the pipe, but the other roller remains in engagement. The carriage and cut-off mechanism is, therefore, advanced only by that roller which is engaged with a smooth surface of the pipe.

REFERENCES:
patent: 3747446 (1973-07-01), Davis
patent: 3771393 (1973-11-01), Gatto et al.
patent: 4052039 (1977-10-01), Koyano et al.
patent: 4349182 (1982-09-01), Blackburn

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